chronos/manual.typ

#import "@preview/tidy:0.3.0"
#import "src/lib.typ" as chronos
#import "src/participant.typ" as mod-par
#import "docs/examples.typ"
#import "docs/example.typ": example

#let TYPST = image("gallery/typst.png", width: 1.5cm, height: 1.5cm, fit: "contain")

#let doc-ref(target, full: false, var: false) = {
  let (module, func) = target.split(".")
  let label-name = module + func
  let display-name = func
  if full {
    display-name = target
  }
  if not var {
    label-name += "()"
    display-name += "()"
  }
  link(label(label-name))[#display-name]
}

#set heading(numbering: (..num) => if num.pos().len() < 4 {
  numbering("1.1", ..num)
})
#{
  outline(indent: true, depth: 3)
}
#show link: set text(fill: blue)

#set page(numbering: "1/1", header: align(right)[chronos #sym.dash.em v#chronos.version])
#set page(
  header: align(left)[chronos #sym.dash.em v#chronos.version],
  footer: context align(center, counter(page).display("1/1", both: true))
)

= Introduction

This package lets you create nice sequence diagrams using the CeTZ package.

= Usage

Simply import #link("https://typst.app/universe/package/chronos/")[chronos] and call the `diagram` function:
#pad(left: 1em)[```typ
#import "@preview/chronos:0.1.0"
#chronos.diagram({
  import chronos: *
  ...
})
```]

= Examples

You can find the following examples and more in the #link("https://git.kb28.ch/HEL/circuiteria/src/branch/main/gallery")[gallery] directory

== Some groups and sequences

#example(```
chronos.diagram({
  import chronos: *
  _seq("Alice", "Bob", comment: "Authentication Request")
  _seq("Bob", "Alice", comment: "Authentication Failure")

  _grp("My own label", desc: "My own label2", {
    _seq("Alice", "Log", comment: "Log attack start")
    _grp("loop", desc: "1000 times", {
      _seq("Alice", "Bob", comment: "DNS Attack")
    })
    _seq("Alice", "Bob", comment: "Log attack end")
  })
})
```, wrap: false, vertical: true)

#pagebreak(weak: true)

== Lifelines

#example(```
chronos.diagram({
  import chronos: *
  _seq("alice", "bob", comment: "hello", enable-dst: true)
  _seq("bob", "bob", comment: "self call", enable-dst: true)
  _seq(
    "bill", "bob",
    comment: "hello from thread 2",
    enable-dst: true,
    lifeline-style: (fill: rgb("#005500"))
  )
  _seq("bob", "george", comment: "create", create-dst: true)
  _seq(
    "bob", "bill",
    comment: "done in thread 2",
    disable-src: true,
    dashed: true
  )
  _seq("bob", "bob", comment: "rc", disable-src: true, dashed: true)
  _seq("bob", "george", comment: "delete", destroy-dst: true)
  _seq("bob", "alice", comment: "success", disable-src: true, dashed: true)
})
```, wrap: false, vertical: true)

#pagebreak(weak: true)

== Found and lost messages

#example(```
chronos.diagram({
  import chronos: *
  _seq("?", "Alice", comment: [?->\ *short* to actor1])
  _seq("[", "Alice", comment: [\[->\ *from start* to actor1])
  _seq("[", "Bob", comment: [\[->\ *from start* to actor2])
  _seq("?", "Bob", comment: [?->\ *short* to actor2])
  _seq("Alice", "]", comment: [->\]\ from actor1 *to end*])
  _seq("Alice", "?", comment: [->?\ *short* from actor1])
  _seq("Alice", "Bob", comment: [->\ from actor1 to actor2])
})
```, wrap: false, vertical: true)

#pagebreak(weak: true)

== Custom images

#example(```
let load-img(path) = image(path, width: 1.5cm, height: 1.5cm, fit:"contain")
let TYPST = load-img("../gallery/typst.png")
let FERRIS = load-img("../gallery/ferris.png")
let ME = load-img("../gallery/me.jpg")

chronos.diagram({
  import chronos: *
  _par("me", display-name: "Me", shape: "custom", custom-image: ME)
  _par("typst", display-name: "Typst", shape: "custom", custom-image: TYPST)
  _par("rust", display-name: "Rust", shape: "custom", custom-image: FERRIS)

  _seq("me", "typst", comment: "opens document", enable-dst: true)
  _seq("me", "typst", comment: "types document")
  _seq("typst", "rust", comment: "compiles content", enable-dst: true)
  _seq("rust", "typst", comment: "renders document", disable-src: true)
  _seq("typst", "me", comment: "displays document", disable-src: true)
})
```, wrap: false, vertical: true)

#pagebreak(weak: true)

= Reference

#let par-docs = tidy.parse-module(
  read("docs/participants.typ"),
  name: "Participants",
  require-all-parameters: true,
  scope: (
    chronos: chronos,
    mod-par: mod-par,
    TYPST: TYPST,
    doc-ref: doc-ref
  )
)
#tidy.show-module(par-docs, show-outline: false, sort-functions: none)

#pagebreak(weak: true)

#let seq-docs = tidy.parse-module(
  read("docs/sequences.typ"),
  name: "Sequences",
  require-all-parameters: true,
  scope: (
    chronos: chronos,
    doc-ref: doc-ref,
    examples: examples
  )
)
#tidy.show-module(seq-docs, show-outline: false, sort-functions: none)

#pagebreak(weak: true)

#let grp-docs = tidy.parse-module(
  read("docs/groups.typ"),
  name: "Groups",
  require-all-parameters: true,
  scope: (
    chronos: chronos,
    doc-ref: doc-ref,
    examples: examples
  )
)
#tidy.show-module(grp-docs, show-outline: false, sort-functions: none)

#pagebreak(weak: true)

#let gap-sep-docs = tidy.parse-module(
  read("docs/gaps_seps.typ"),
  name: "Gaps and separators",
  require-all-parameters: true,
  scope: (
    chronos: chronos,
    doc-ref: doc-ref,
    examples: examples
  )
)
#tidy.show-module(gap-sep-docs, show-outline: false)

#pagebreak(weak: true)

#let notes-docs = tidy.parse-module(
  read("docs/notes.typ"),
  name: "Notes",
  require-all-parameters: true,
  scope: (
    chronos: chronos,
    doc-ref: doc-ref,
    examples: examples
  )
)
#tidy.show-module(notes-docs, show-outline: false)